Airtac SAI40 Standard Air Cylinder SAI40AX270
The AirTAC SAI40 Standard Air Cylinder SAI40AX270 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 270mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ40 mm
- Stroke270 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAI40 Standard Air Cylinder SAI40AX270
The AirTAC SAI40X270 is a double-acting ISO 15552 profile cylinder offering a 628 N push force at 0.5 MPa. Its 270 mm stroke provides the extended travel needed for mid-range automation tasks. The extruded aluminum barrel design omits tie rods for a clean exterior.
This specific configuration features a SUS420J2 stainless steel piston rod (material code A) for enhanced corrosion resistance over standard carbon steel. It uses PT tapered port threads and lacks a magnet, meaning it is optimized purely for actuation without internal position sensing.
Airtac SAI40 Standard Air Cylinder SAI40AX270 Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40AX270 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 270 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 30 mm |
| Max stroke | Up to 1200 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAI40 Standard Air Cylinder SAI40AX270
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×270 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAI40 Standard Air Cylinder SAI40AX270 Is Used
Package Diversion
Provides the 270 mm reach and 628 N push force needed to actuate routing gates on high-speed packaging conveyors.
Component Ejection
Uses its SUS420J2 rod to reliably push machined parts out of a lathe or mill workspace without succumbing to coolant mist.
Material Handling
Drives lifting arms on small pneumatic hoists where the 40 mm bore offers the optimal balance of speed and thrust.
Is the Airtac SAI40 Standard Air Cylinder SAI40AX270 the Right Cylinder?
If your application requires less force, stepping down to the 32 mm bore yields 402 N at 0.5 MPa, while moving up to the 50 mm bore provides 982 N for heavier loads. Because this 270 mm stroke exceeds the 300 mm threshold, be mindful of side-load dynamics. An unsupported rod of this length can bend under lateral stress, so utilizing an external guide rail or a guided cylinder module is highly recommended to protect the rod bearing.
As a dimensionally interchangeable ISO 15552 unit, this 40 mm bore cylinder with a 270 mm stroke, G1/4 port, and PT thread serves as a direct replacement for other ISO 15552 profile cylinders. For mounting flexibility, you can pair it with FA or FB flanges, LB foot brackets, or TC trunnion joints depending on your pivot requirements. It does not hold its load unpowered; if pneumatically exhausted, the piston will drift, so consider the SAIL variant for fail-safe locking.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAI40 Standard Air Cylinder SAI40AX270 FAQ
At an operating pressure of 0.5 MPa, this 40 mm bore cylinder generates a push force of 628 N and a pull force of 528 N. At 0.7 MPa, the push force increases to 879 N.
Yes. The SAI40X270 is built to the ISO 15552 standard, making its mounting dimensions interchangeable with other ISO 15552 profile cylinders. You should verify your port thread (PT) and mounting accessory compatibility before installation.
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